DOES MY TUM LOOK BIG IN THIS?

Okay - this is the only full-length photo of me I could find in a hurry - taken in England last year by my grandson. My hair is now longer, though still with its natural grey highlights, but I look much the same. Except that I have put on a kilo and a half since I gave up smoking.

This month I have been wearing dresses because it's summer, but my black handbag doesn't look good with summer dresses, so today I was browsing for another. I reckoned I could treat myself as my trip to the dentist cost me nothing!
I looked at the price ticket - 27 euros - and shook my head. The trader pounced. I explained that I was a writer and needed a bag large enough to take my A5 notebook. He took the bag I admired inside the shop and extracted the paper stuffing. We tried the notebook, which fitted. 
I said "Not enough pockets." The price dropped by three euros. I said I would think about it, The price dropped another three euros. I walked to the door. "Give me eighteen euros," he said. At least he hadn't mentioned a wife and six starving children. "All right," I agreed - it's a pretty bag.
As I was getting my purse out we got chatting and this young man - well, 40ish anyway - patted my tummy gently and asked, "Baby?" I fell about laughing. He frowned. "I'm a grandmother," I said. He smiled and changed the subject.
As I was walking back to my car I wondered whether to be flattered or hurt. He'd already made the sale, so presumably it wasn't flattery, yet did I really look young enough to be pregnant? It would be nice to think so.
But it was probably the dress, which falls in tiers from the waist - nice and cool in Tenerife heat.
Hence the question - does my tum look big in this?